This new method and design is using one continuous extraction at pressures of 1800PSI and below (Actually I capped it at 1500PSI). The temperature and pressure ratings of the aluminum storage vessel are never exceeded at any point.
My stainless steel design allows for up to 3800PSI and so if desired it can be sealed and heated much like the SCUBA tank. That is not the intention, however. This system is meant for convenience for the small commercial market.
I like to show the dirty along with the pretty, so here are some quick and dirty videos of my new design of pressure vessels and a lavender crumble extraction.